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fix conditional pixel snapping for marker rasters

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This commit is contained in:
Dane Springmeyer 2014-07-31 00:49:00 -07:00
parent 3412c071ab
commit c6a291271f
2 changed files with 16 additions and 5 deletions
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21
include/mapnik/marker_helpers.hpp
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@ -241,11 +241,22 @@ struct raster_markers_rasterizer_dispatch : mapnik::noncopyable
{ {
agg::rendering_buffer src_buffer((unsigned char *)src_.getBytes(),src_.width(),src_.height(),src_.width() * 4); agg::rendering_buffer src_buffer((unsigned char *)src_.getBytes(),src_.width(),src_.height(),src_.width() * 4);
pixfmt_pre pixf_mask(src_buffer); pixfmt_pre pixf_mask(src_buffer);
renb_.blend_from(pixf_mask, if (snap_to_pixels_)
0, {
std::floor(marker_tr.tx + .5), renb_.blend_from(pixf_mask,
std::floor(marker_tr.ty + .5), 0,
unsigned(255*opacity)); std::floor(marker_tr.tx + .5),
std::floor(marker_tr.ty + .5),
unsigned(255*opacity));
}
else
{
renb_.blend_from(pixf_mask,
0,
marker_tr.tx,
marker_tr.ty,
unsigned(255*opacity));
}
} }
else else
{ {

BIN
tests/visual_tests/images/marker-symbolizer-expressions-all-256-256-1.0-agg-reference.png
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